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Publications246 found, 100 shown here

..diseases, with their associated morbidity and mortality, underscores the need for effective insect repellents. Multiple chemical, botanical, and "alternative" repellent products are marketed to consumers...

Field evaluation of traditionally used plant-based insect repellents and fumigants against the malaria vector Anopheles darlingi in Riberalta, Bolivian Amazon

Inexpensive insect repellents may be needed to supplement the use of impregnated bed-nets in the Amazon region, where the primary malaria vector, Anopheles darlingi (Root), is exophilic and feeds in the early evening...

..Since 0.02% DEET elicited action potentials, we conclude that DEET directly activates of GRNs. We suggest that the effectiveness of DEET in pest control owes to its dual action in inducing avoidance simultaneously via GRNs and ORNs...

..The three classes of CO(2)-response-modifying odours offer powerful instruments for developing new generations of insect repellents and lures, which even in small quantities can interfere with the ability of mosquitoes to seek humans.

N HillDepartment of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HTBMJ 335:1023. 2007

..To determine the effectiveness in reducing malaria of combining an insect repellent with insecticide treated bed nets compared with the nets alone in an area where vector mosquitoes feed in the early evening...

..There is a case for giving repellents more prominence in public health as a preventive measure in regions where vectors bite in the early evening or in emergency situations such as epidemics or newly established refugee camps...

A natural polymorphism alters odour and DEET sensitivity in an insect odorant receptor

Maurizio PellegrinoLaboratory of Neurogenetics and Behaviour, The Rockefeller University, 1230 York Avenue, Box 63, New York, New York 10065, USANature 478:511-4. 2011

..b>Insect repellents containing DEET (N,N-diethyl-meta-toluamide) are highly effective, but the mechanism by which this chemical ..

..The three volatile oils can be formulated with vanillin as mosquito repellents in various forms to replace deet (N,N-diethyl-3-methylbenzamide), the most common chemical repellent currently available...

..In contrast, the most variable number of paths occurred with exposure to ruda. Exposure to almizcle elicited straight line paths but other paths were evident, although not as variable as that observed with ruda...

..Highest spatial repellency (33.6%) was observed using a combination of linalool and dehydrolinalool. Deet did not manifest spatial repellency, whereas linalool and dehydrolinalool alone, and in combination, exhibited spatial repellency...

Insect repellents: modulators of mosquito odorant receptor activity

Jonathan D BohbotInvasive Insect Biocontrol and Behavior Laboratory, Henry A Wallace Beltsville Agricultural Research Center, Plant Sciences Institute, Agricultural Research Service, United States Department of Agriculture, Beltsville, Maryland, United States of AmericaPLoS ONE 5:e12138. 2010

DEET, 2-undecanone (2-U), IR3535 and Picaridin are widely used as insect repellents to prevent interactions between humans and many arthropods including mosquitoes...

Adverse events associated with the use of insect repellents containing N,N-diethyl-m-toluamide (DEET)

..spike responded to the feeding deterrent, quinine, as well as N,N-diethyl-3-methylbenzamide and other insect repellents. Two other neurons with differing spikes responded to salt (NaCl) and sucrose...

..insect behavior for the purpose of controlling the spread of infectious diseases has been the task of a few insect repellents for which the mechanistic modes of action on odorant receptors (ORs) are unclear...

Insect repellents and associated personal protection for a reduction in human disease

..These initial laboratory results clearly showed that anisaldehyde and geraniol could be promising spatial repellents against Ae. albopictus that they could play a major role in new repellent technology...

..First results on bioactivity and long-lasting efficacy show that the new LLRTN technique is highly promising as a potential candidate for future malaria control strategies, especially in areas where pyrethroid resistance occurs...

Field investigation on the repellent activity of some aromatic plants by traditional means against Anopheles arabiensis and An. pharoensis (Diptera: Culicidae) around Koka, central Ethiopia

..The degree of acute morbidity is directly related to the number of embedded sand fleas. When transmission is interrupted, the chronic morbidity reflects the infestation rates individuals have experienced in the past...

..Even with these advances, there is still a large amount of information contained in the early works on insect repellents. Many of the standard test methods and chemicals that are still used for evaluating active repellents were ..

For the use of topical insect repellents, DEET and picaridin, human health risk assessments were conducted for various population subgroups. Acute, subchronic, and chronic dermal exposures were examined...

DEET mosquito repellent sold through social marketing provides personal protection against malaria in an area of all-night mosquito biting and partial coverage of insecticide-treated nets: a case-control study of effectiveness

..It was shown that Mosbar prevented biting throughout this period. In regions where mosquito vectors bite during evening and night, repellents could have a useful supplementary role to ITN and their use should be more widely encouraged...

..5 d for deet). Only one of the carboxamides, hexahydro-1-(l-oxohexyl)-1H-azepine, had a minimum effective dosage that was equivalent or slightly better than that of deet (0.033 micromol/cm2 versus 0.047 micromol/cm2)...

..Such products have the potential to provide more complete, safer and longer lasting protection than conventional repellents, preventing disease transmission by interrupting the parasite life cycle...

Control of tungiasis through intermittent application of a plant-based repellent: an intervention study in a resource-poor community in Brazil

..For the cases reported to poison control centers and included in this analysis, the risk of serious medical effects for labeled use of insect repellants containing N,N-diethyl-m-toluamide appears to be low...

..Base properties of the lemongrass oil formulations influenced their effectiveness. The oil demonstrated efficacy from the different bases in the order of hydrophilic base > emulsion base > oleaginous base...

Repellency of IR3535, KBR3023, para-menthane-3,8-diol, and deet to black salt marsh mosquitoes (Diptera: Culicidae) in the Everglades National Park

..A spray-type solution containing 2% alpha-terpinene was tested for its repellent activity against Cx. pipiens. This solution showed stronger repellent activity than the currently used repellent N,N-diethyl-m-methylbenzamide (deet)...

..52 ppm), respectively, after 24 h. The plant extracts are potential to be used as an ideal eco-friendly approach for the control of the Japanese encephalitis vector, C. gelidus, and lymphatic filariasis vector, C. quinquefasciatus...

Laboratory and field evaluation of SS220 and deet against mosquitoes in Queensland, Australia

..The results indicate that use of O. forskolei as a repellent would be beneficial in reducing vector biting if used in communities in areas with partially zoophilic mosquito species such as An. stephensi, and where animals are present...

Comparative field evaluation of repellent formulations containing deet and IR3535 against mosquitoes in Queensland, Australia

..We describe the principles of the strategy, list the potential components, and present case studies reviewing work on the development and use of push-pull strategies in each of the major areas of pest control...

..0 and 2.5 mg/cm2 concentrations gave 100% protection up to 2.14 +/- 0.16 h and 4.00 +/- 0.24 h, respectively. The total percentage protection of Ferronia elephantum was 45.8% at 1.0 mg/cm2 and 59.0% at 2.5 mg/cm2 for 10 h...

Lethal and behavioural effects of three synthetic repellents (DEET, IR3535 and KBR 3023) on Aedes aegypti mosquitoes in laboratory assays

..The physiological and molecular mechanisms of repellents, especially DEET, should be investigated to ensure a better use of these molecules for skin applications and/or for treating materials against mosquitoes...

A low-cost repellent for malaria vectors in the Americas: results of two field trials in Guatemala and Peru

..This review provides information on common mosquito repellents and rodenticides used in households and discusses their toxicity, in order to help pediatricians better advise their patients of their proper use...

Synergy between repellents and non-pyrethroid insecticides strongly extends the efficacy of treated nets against Anopheles gambiae

..unravel the mechanisms through which insects respond to sensory cues, ranging from changes in temperature to insect repellents. These questions are of potential relevance to the control of insect pests, since mosquitoes that spread ..

..Insects are major vectors of disease. An understanding of how insects depend on natural products for regulation of their biotic interactions is of broad applied significance to both medicine and agriculture. [unreadable] [unreadable]..

..The health relatedness of these studies is that cellular and molecular factors that regulate axonal pathfinding may have direct application to neurological and psychiatric disorders with a developmental basis. ..

..The proposed studies are based on solid preliminary data and are hypotheses driven. Results from these studies, we believe will advance our knowledge towards developing a defined vaccine against lymphatic filariasis in the human. ..

..This work has important implications for the health and treatment for the millions of people who consume even moderate amounts of alcohol and who may be knowingly or unknowingly exposed to potentially toxic chemicals. ..